Ventilator.



L. P. HYNES.

Patented Nov. 5, 1918.

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L. P. HYNESK VENTILATOR.

APPLICATION FILED SEPT.28,19I4.

Paten tedfNov. 5, 1918.

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L. P. HY NES. VENTILATOR.

APPLICATION FILED SEPT- 28.1914.

1 ,283,521 Patented Nov. 5, 1918.

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UNITED. STATES PAT N OFFICE.

LEE 2. HYNES, OF CHICAGO, ILLINOIS, AssICNOaro RAILWAY UTILITY COMPANY, OF

"CHICAGO, ILLINOIS, A CORPORATION or LINoIs.

VENTILATOR.

ToaZZ whom itmay concern:

Be it known that I',Lnn P. Hrivns, a citizen of the United States, residing at Chicago, 1n the county of Cook and gtate of Illinois, have invented certainnew and useful Improvements in Ventilators, ofwhich.

the following is a specification.

My invention relates more particularly to that class of ventilators which is designed to be attached to car's and which depend for thelr action upon movement of air with reference to the ventilatorwhether produced by the movement ofthe car orojther c'onstruction carrying the j ventilator or' by the natural air currents or winds. My inven tion' while particularly designed with reference'to car construction is applicable also to stationary buildingsandwhen used in connection with the latter operates entirely by the air currents passing over and around the same. I Various ventilators have been constructed fora similar purpose in which,-as- In the present case, the ventilating action is the prior art in effectiveness andv durability. and to decrease the cost of manufacture thereof.

In Figure 1 I have shown in perspective a I preferred form of my invention adapted to be applied to a vertical portion of a car such as the sash thereof. Fig. 2 is a fragmentary view of the construction shown in Fig. 1 on a transverse vertical plane; Fig. 3 a vertical section through a slightly modified form thereof; Fig. 4 is a section upon the line 44 of Fig. 3; Fig. 5 is a modification of the device which is adapted to be applied to the curved roof of a car; Figs. 6 and 7 transverse vertical sections of modifications thereof; Fig. 8 a plan view of a form of my invention which is particularly adapted'to a horizontal surface or the roof similar structure; and Fig. 9 a central vertical section thereof.

The feature of my invention which is of paramount importance and is common to all the forms shown in the several views is that the aspirating edges of the device are struck- Specification of Letters Patent.

Application filed September 2 8, 1914. Serial No. 863,870.

' the same in both cases.

of a car or I Patented Nov. 5, 1913.

ventilator is increased and it is also possible at slight expense to largely increase the ex; j comtent of edge subject to wind action as pared to former structures. Referring now to'Fig. 1 the construction shown therein is in its general design simi lar to one of the constructions shown in my said patent. It comprises an attaching flange ll' which is secured about an opening 7 in the upright wall of the car. vA short horii zontal flue 12 connects the'fiange with the boxlike body 13 of the ventilator which'comprises imperforate end wallsll which are or may be continuous with the end walls of'the flue 11, a top 15 and a side wall 16, the latter of which are formed of sheet metal which is suitably slitted and struck up along one edge of each slit as at 17 to form an overhanging lipforthe opening or slot. 7 The numberof slits and overhan ing lips may be asdesired or found most e cient. In the top wall or f plate the lips are so struck up that the open?) vings 19 face toward the car and are prothe function not onlyof presenting aspiratf lng' advantages to passing air currents, as

"tested by said overhanging lips, which have before 'clescribed,'but also prevent rainfdirt,

etc., from being blown into the car. It will be noted from an inspection of the views that by reason'of the struck-up lips it is impossible to blow a straight blast through .the openings and into the flue 12 connected a portion of the plane of the wall is retained between the slots as at 20 but in the modification as shown in Fig. 3 the inclined lip of one slot is continued to the edge of the next slot as at 21, theefi'ect, however, being The lower end of the ventilator is open except for a grille 22 formed of corrugated metal strips 23 fastened together at their abutting points as at 24. The grille which is best shown in Fig.

4 serves to break up upward currents of air and turn them toward the vertical so that theyfmay escape through the openings inthe side and top respectively of theiventila'tor. Y v

Turning now to the construction shown in Fig. 5 it is seen to be substantially like Fig.

1 except that the duct or passage for communicating with the interior of the car is arranged to adapt it to be applied to the curved roof thereof. For this purpose the upper wall or top of the ventilator is continued laterally and doii'nwardly curved as at 25 and the attaching flange 26 is curved to adapt it t the curve of the root.

In Fig. 6 is shown a modification similar to Fig. 3 in the character of the aspirating wall and the lower opening but adapted like the modification shown in Fig. 5 to a curved root.

In Fig. 7 is seen a further modification in which the side wall is curved inwardly and continued practically to the outer edge of the fine 27 thus dispensing with the grille shown in F 3, 4L and 6.

In Figs. 8 and 9 is shown a form of ven tilator adapted to be applied to the top of a car in which. the flange 28 is formed with a rectangular upwardly projecting wall 29, terminating in an inwardly inclined flange 30. The top 31 of the ventilator is imperforate immediate] above the ovenin into the ear to prevent the direct entrance oi rain, snow or dirt into the car and the ventilator is formed with four lateral, rectan gular extensions 32, which, as shown, are similar to the ventilator shown in Fig. 3 having the slotted struck-up walls 33, 34:, the grille openings and the imperforate end walls 36. The slots and lips, however, extend substantially from end to end of the walls in which they are formed.

In each of the forms of the invention above-described are provided numerous aspirating edges and the total area of the exhaust openings is much greater thaninthe device of the prior art and at the same time ample provision ismade to avoid the entra-nce of water, sand or dirt into the car by reason of the relation of the lips to the slots and to the opening into the car. The lips or overhanging edges are so placed with respect to the slots and with respectto the passage into the interior of the car that direct passage of water, dirt, or the like, is prevented and the slots in the top of the ventilator are vertically over the lower outlet so that any rain or the like entering said slots drops through the lower opening out of the ventilator. In order to further avoid side drafts carrying Water and dirt into the car it will be noted that the openingson the side are directed upwardly toward the openings in the top so that any air blowing against the side and entering the ventilator passes outward at the top of the same.

I claim:

A. ventilator for cars comprising a rec tangular sheet metal structure having a lateralv opening for communication With the interior of the car to be ventilated, imperforate front and rear walls, the bottom being open and the top Wall slitted and struck up to form a series of substantially vertical openings therein, the edges of said openings remote from the side having the lateral opening being raised relatively to the other sides of said openings whereby the lateral opening is protected from the entrance of rain.

LEE P, HYNES.

Witnesses JOHN B. MACAULEY, ROBERT DOBBERMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents. Washington, D. C." 

